The outage was caused by PG&E equipment failure. The San Francisco Fire Department reported there was a vault fire in the same area.

The outage did not affect the Chase Center or Muni routes, PG&E said.

The Fire Department warned people to expect delays northbound on Third Street where one lane was blocked until about 4 p.m.

Chase Center, the new home of the Golden State Warriors, was scheduled to host a Metallica concert at 8 p.m. Friday. Officials for the arena said it was not affected because it is on a different circuit.

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Anna Bauman is a reporter from Kansas City, MO covering breaking news for The San Francisco Chronicle metro desk. She recently graduated from the University of Oklahoma where she studied English and worked at the OU Daily student newspaper.